3. Snooze your email for Gmail: Too many important emails in your inbox and worried that you might miss replying to some. Well, this plugin comes to your rescue. You can snooze an email and get a reminder later.

7. SaneBox: Well, SaneBox is a combination of attachments.me, Snooze your email, and a service similar to Priority Inbox provided by Gmail, only much better. It's a 14 day free trial, and you need to pay some nominal amount after the trial gets expired.